Splitting stone.



No. 630,983. Patented Aug. l5, I899. K. KREUZEB.

SPLITTING STONE.

(Application filed Feb. 6, 1899.]

(No Model.)

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UNITED STATES PATENT OFFICE.

KARL KREUZER, OF LINDENFELS, GERMANY.

SPLITTING STONE.

SPECIFICATION forming part Of Letters Patent NO. 630,983, dated August 1 5, 1899.

Application filed February 6, 1899. Serial No. 704,712. (No model.)

To all whom it may concern:

Be it known that I, KARL KREUZER, a subject of the Emperor of Germany, and a resident of Lindenfels, Odenwald, Germany, have invented certain new and useful Improvements in Splitting Stone, of which the following is a specification.

This invention is intended to provide a means by which stone,especially of the harder varieties, can be split into slabs or blocks suitable for paving purposes and requiring less or no afterdressing, by which saving such stone maybe prepared in a remunerative manner to compete with other varieties of pavingstone.

In place of making wedge-holes and driving wedges therein, or, more simply, striking stone with a suitable sledge-hammer only, I place the block of stone against a stationary cutter a and cause another cutter f to move violently against the opposite side of the block, which is accurately split in the plane of the cutters. The means for doing this may comprise a heavy stand or base 0, (see the accompanying drawing, which is a perspective view,) having on it a cast-iron anvil b, with a dovetail groove to receive a removable cutter a in its side. The base is prolonged below the cutter to serve as a table cl,on which the stone is placed to rest against the aforesaid cutter b. A second cutter f is similarly mounted in a pendulum or other suitable hammer h, hinged by stirrups g above and adapted to be lifted, as shown by dotted lines,

and to swing down against the stone so that the cutter f thereon strikes the stone in the same plane as the aforesaid cutter a is situated. To prevent the cutters meeting one another, the hammer has a projection h, adapted to meet the end of the base. Such device might also be arranged so that the hammer-block strikes Vertically on the stone supported below on the stationary cutter.

The essential feature of the device is that the stone is subjected simultaneously to the action of two cutters acting inthe same plane or essentially along corresponding lines on opposite sides of the block.

The edges of the cutters may be straight or curved.

I claim- In a splitting apparatus, the combination with a standard, of a stationary cutter mounted thereon, a pendulum-hammer suspended above said standard, a cutter having its edge arranged in the same plane with the edge of said stationary cutter and mounted in said hammer, and a depending projection on said hammer adapted to engage with said standard to prevent the engagement of the cutters with each other, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

KARL KREUZER.

\Vitnesses:

FRANZ HASSLAOHER, MICHAEL VoLK. 

